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Old Maps of Warren County, Missouri

Explore 38 old maps of Warren County, spanning from 1890 to today. These high-resolution historic maps reveal how streets, neighborhoods, landmarks, and natural features evolved over time — perfect for genealogy, metal detecting, research, and local history exploration.

What you can do with these maps:

  • See how Warren County changed over time: Compare historical maps to modern-day views to trace roads, homesites, rail lines & more.
  • View detailed metadata: Each map includes creators, publishers, year, scale, and archive source.
  • Overlay maps with satellite & LiDAR: Visualize the past alongside modern tools to explore terrain & human change.
  • Trusted historical sources: Maps sourced from the USGS, Library of Congress, and other archives.
  • Access maps your way: View online, download high-res files, or order prints for personal or research use.

Start exploring old maps of Warren County to uncover forgotten places, hidden landmarks, and the deep history beneath your feet.

Warren County, MO maps

(38)
  1. 1890 Map of Hermann
    1890 Map of Hermann
    1890 Hermann
    1890 Print · USGS
    Covers Warren County, including Washington, Troy, and other nearby areas
    5 unique versions available
  4. 1903 Map of O'Fallon
    1903 Map of O'Fallon
    1903 O'Fallon
    1903 Print · USGS
    Covers Warren County, including O'Fallon, Saint Charles, and other nearby areas
    5 unique versions available
  7. 1936 Map of Hermann
    1936 Map of Hermann
    1936 Hermann
    1936 Print · USGS
    Covers Warren County, including Hermann, Berger, and other nearby areas
  10. 1941 Map of Troy, 1964 Print
    1941 Map of Troy, 1964 Print
    1941 Troy
    1964 Print · USGS
    Covers Warren County, including O'Fallon, Wentzville, and other nearby areas
    2 unique versions available
  13. 1942 Map of Hermann, 1961 Print
    1942 Map of Hermann, 1961 Print
    1942 Hermann
    1961 Print · USGS
    Covers Warren County, including Hermann, Berger, and other nearby areas
    2 unique versions available
  16. 1942 Map of New Florence, 1963 Print
    1942 Map of New Florence, 1963 Print
    1942 New Florence
    1963 Print · USGS
    Covers Warren County, including Montgomery City, New Florence, and other nearby areas
    2 unique versions available
  19. 1943 Map of Warrenton, 1962 Print
    1943 Map of Warrenton, 1962 Print
    1943 Warrenton
    1962 Print · USGS
    Covers Warren County, including Troy, Warrenton, and other nearby areas
    2 unique versions available
  22. 1945 Map of Troy
    1945 Map of Troy
    1945 Troy
    1945 Print · USGS
    Covers Warren County, including O'Fallon, Wentzville, and other nearby areas
    2 unique versions available
  25. 1945 Map of Hermann
    1945 Map of Hermann
    1945 Hermann
    1945 Print · USGS
    Covers Warren County, including Hermann, Berger, and other nearby areas
    2 unique versions available
  28. 1945 Map of Warrenton
    1945 Map of Warrenton
    1945 Warrenton
    1945 Print · USGS
    Covers Warren County, including Troy, Warrenton, and other nearby areas
    2 unique versions available
  31. 1946 Map of New Florence
    1946 Map of New Florence
    1946 New Florence
    1946 Print · USGS
    Covers Warren County, including Montgomery City, New Florence, and other nearby areas
    2 unique versions available
  34. 1948 Map of Washington, 1962 Print
    1948 Map of Washington, 1962 Print
    1948 Washington
    1962 Print · USGS
    Covers Warren County, including Washington, New Haven, and other nearby areas
    2 unique versions available
  37. 1948 Map of Augusta, 1963 Print
    1948 Map of Augusta, 1963 Print
    1948 Augusta
    1963 Print · USGS
    Covers Warren County, including O'Fallon, Washington, and other nearby areas
    2 unique versions available
  40. 1949 Map of Saint Louis
    1949 Map of Saint Louis
    1949 Saint Louis
    1949 Print · USGS
    Covers Warren County, including St. Louis, O'Fallon, and other nearby areas
    2 unique versions available
  43. 1949 Map of Washington
    1949 Map of Washington
    1949 Washington
    1949 Print · USGS
    Covers Warren County, including Washington, New Haven, and other nearby areas
    2 unique versions available
  46. 1949 Map of Augusta
    1949 Map of Augusta
    1949 Augusta
    1949 Print · USGS
    Covers Warren County, including O'Fallon, Washington, and other nearby areas
    2 unique versions available
  49. 1962 Map of St. Louis
    1962 Map of St. Louis
    1962 St. Louis
    1962 Print · USGS
    Covers Warren County, including St. Louis, O'Fallon, and other nearby areas
  52. 1963 Map of St. Louis, 1970 Print
    1963 Map of St. Louis, 1970 Print
    1963 St. Louis
    1970 Print · USGS
    Covers Warren County, including St. Louis, O'Fallon, and other nearby areas
    4 unique versions available
  55. 1966 Map of St. Louis
    1966 Map of St. Louis
    1966 St. Louis
    1966 Print · USGS
    Covers Warren County, including St. Louis, O'Fallon, and other nearby areas
  58. 1972 Map of Foristell, 1973 Print
    1972 Map of Foristell, 1973 Print
    1972 Foristell
    1973 Print · USGS
    Covers Warren County, including Wentzville, Wright City, and other nearby areas
    3 unique versions available
  61. 1972 Map of Washington East, 1973 Print
    1972 Map of Washington East, 1973 Print
    1972 Washington East
    1973 Print · USGS
    Covers Warren County, including Washington, Augusta, and other nearby areas
  64. 1972 Map of New Melle, 1973 Print
    1972 Map of New Melle, 1973 Print
    1972 New Melle
    1973 Print · USGS
    Covers Warren County, including New Melle, Cappeln, and other nearby areas
    2 unique versions available
  67. 1972 Map of Wright City, 1974 Print
    1972 Map of Wright City, 1974 Print
    1972 Wright City
    1974 Print · USGS
    Covers Warren County, including Warrenton, Wright City, and other nearby areas
    2 unique versions available
  70. 1972 Map of Marthasville, 1975 Print
    1972 Map of Marthasville, 1975 Print
    1972 Marthasville
    1975 Print · USGS
    Covers Warren County, including Marthasville, Innsbrook, and other nearby areas
    2 unique versions available
  73. 1973 Map of Hawk Point, 1974 Print
    1973 Map of Hawk Point, 1974 Print
    1973 Hawk Point
    1974 Print · USGS
    Covers Warren County, including Hawk Point, Truxton, and other nearby areas
    2 unique versions available
Showing maps 1-25 of 38

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Frequently asked questions

  • What are the different types of historical maps available for Warren County?
  • What is the oldest map of Warren County?
  • Where can I purchase historical maps of Warren County for my home or office?
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  • Are there historical topographic maps available for Warren County?
  • Is there historical aerial imagery available for Warren County?
  • Where are historical maps of Warren County sourced from?